Golf fans will certainly recognize the name Greg Norman. He was ranked number one in the world for 331 straight weeks. But most people don't realize the golfer known as "The Shark" is a force off the course too. He's built up a 300-million dollar business around himself! Greg shares his secrets to success in his new book called "The Way of the Shark: Lessons on Golf, Business and Life." Norman was invited to discuss the book on “Today.” Here’s an excerpt:

In our journey through life, we learn many small lessons that mold us, shape us, and influence how we deal with others. But once in a while something happens that seriously alters the path on which we're headed. Such lessons stick with us like glue. We never forget them. We relive them over and over again, in our private moments, in our conversations, in our dreams. I was only eighteen years old when I experienced my first life-changing lesson. I was by myself, and it really was a pivotal moment. It turned me toward the great sport of golf.

A few years after my family moved to Brisbane (Australia's third-largest city, located on the southeastern coast of Queensland), a major cyclone swept along the shoreline a few hundred miles to the northeast and caused the ocean to produce a heavy swell. Not wanting to miss a terrific opportunity to get in some bodysurfing, I grabbed my gear and drove to Noosa Heads. Arriving by midmorning, I hiked about half a mile along the headlands to where I was sure to catch the biggest wave possible. Then I perched myself on some high rocks and studied the waves before I dove in. I knew I'd be committed once in the water because the only way out then was to make it all the way to the beach.

Instead of catching a breaker I could easily ride into the beach, I found myself in an uncontrollable dumper that quickly sucked me down, bounced me hard on the sandy bottom, and rolled me around like a rag doll. The sheer force of the water tore the flippers off my feet and ripped away my hand board. It was like being inside a washing machine. Looking back on it now, I think of it as a terrifying and humbling experience. Until then, I thought I was bulletproof. But when it was actually taking place, I had this inner calm come over me. Everything seemed to be happening in slow motion. Rather than panic, I started thinking of a way to survive the situation. I know it sounds crazy, but the more pressure I'm under, the calmer I become. For me it has always been that way: I take stock of the situation and analyze the best way to deal with it.

Finally the wave released me from its powerful grip and, slowly, I struggled back to the surface. I must have been under for quite a while because that first gasp of fresh air felt like nothing less than the gift of life. But it didn't take me long to realize that I was facing another major problem. I was now nearly half a mile away from the beach, and the surf was pushing me rapidly toward the rocks. The only thing I could do was swim against the tide, which violates all the rules of safety in the ocean. But it was my only option. I'm not sure how long it took me to reach the beach, but when I finally got there, I fell, utterly exhausted, facedown into the sand and just stayed in that position until I could garner strength and count my blessings.

The next day I sat down and thought about what had happened. "Oh, man, what an ordeal," I said to myself. "I'm really lucky to be alive. Surely, there must be something I can do that isn't quite as dangerous."

NBC VIDEO Greg Norman on 'The Way of the Shark' Oct. 26: The champion golfer sits down with "Today" host Matt Lauer to talk about his new book and share some thoughts on golf, business and life. Today Show Books

And what was the lesson I learned? Well, there was a movie out that year called Magnum Force. I had seen it just before the cyclone hit, and as I sat there thinking about my near-death experience, I swear that the image popped into my head of Clint Eastwood saying: "A man has got to know his limitations."

And right then and there, I decided to dedicate myself to golf. Up to that point, golf was just another activity for me. I liked it. I was good at it. But I'd taken it up less than three years before, and to tell you the truth, I'd spent a lot more time in and around the water. I was born in Mount Isa, a small outback mining town populated largely by Finnish immigrants who had migrated to Australia after World War II. Because of their experience and work ethic, the Finns gravitated to the mines of Mount Isa. My mother, Toini, was the daughter of a Finnish carpenter, and my father, Merv, was an electrical engineer for the company. When I was still an infant, we moved to Townsville, on the Queensland coast. It was there, on the edge of the Coral Sea and the Great Barrier Reef, that I spent the first fifteen years of my life. I took it for granted back then, but now I realize that I grew up in paradise: a pristine rain forest area just north of the Tropic of Capricorn, with white sandy beaches, clear coastal waters, and year-round warm weather. The Great Barrier Reef extends more than 1,200 miles and consists of more than 600 islands and 3,000 living reefs.

Back then, life for me was all about having fun. At the age of ten or twelve, I ran with a kid named Peter Rawkins. If we weren't spearfishing together, then we were on horseback, galloping along the beaches with my black Labs, Pancho or Sambo, running alongside. We always rode bareback with a cut lunch (air-dried sliced meat) in bags slung across our backs. Peter and I would ride all day, sometimes covering twenty miles from sunup to sundown. At frequent intervals, we would walk the horses into the shallows and tumble off their backs for a quick swim. And when our parents gave us permission, Peter and I would camp out and fall asleep under the stars, eagerly looking forward to the next day's adventure.

Our horses were kept in a paddock just behind our homes that was surrounded by a barbed wire fence. Each morning we had to ride our bicycles more than three miles around to the main gate to get the horses. Well, one day I decided there was an easier way. I took a pair of wire cutters and cut a hole in the fence big enough for me to squeeze through. Then I caught my horse, put the bridle on him, and rode out through the main gate. But my indiscretion in trying to make life a little easier for myself ended when I was caught and my parents were informed. The consequences of my actions involved some pretty tough punishment. Of course I had to repair the hole in the fence, which was no easy feat because I had cut the tension wire. The entire episode taught me not to take shortcuts.

That was one of my early lessons, but it didn't really slow me down. When the conditions were right, I was on the beach and in the water straightaway. And all too often, I pushed the envelope a bit too far. While spearfishing one day I shot a large coral trout only to have the spear go through the fish and embed itself deep into a coral head. As I was tugging on the spear, I glanced to my left and saw a seven-foot shark moving rapidly in my direction. Instinctively, I let go of the spear and simply floated back to the surface. Glancing back, I could see the shark devouring my catch. After a while, I swam back down, retrieved my spear, and continued fishing. There were a lot of times when sharks chased me off and ate my fish. I didn't like sharks back then.

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